Improvement in stop-motions for looms



2 Sheets'Shee t 1.

Patented May15, 1877.

I. CHRISTEN.

STOP-MOTION FOR. LOOMS.

monuns. I

N. PETE/RS, FHOTOAIJTMOGRAPHEK WQSNINGTON. D- c WITNESSES:

2 Sheets-Sheet 2-.- F. CHRISTEN.

STOP-MOTION FOR Looms. No. 190,741; Patented May 15; 1877.

PNOTO-LITHOGRAPHER, WASHINGTON, DIG

NITED STATES PATENT Orrror FRED. OHRISTEN, OF HOMESTEAD, IOWA.

IMPROVEMENT IN STOP-MOTIONS FOR LOOMS.

Specification forming part of Letters Patent N0. 190,741, dated May 15.1877; application filed February 26, 1877.

- Homestead, in the county of Iowa and State of Iowa, have invented anew and Improved Stop-Motion for Looms, of which the following is aspecification:

Figure 1 is a side view of a shuttle-box of a loom, showing theauxiliary shuttle-binder. Fig. 2 is a top view of the same. Fig. 3contains two views of a shuttle having my improvements attached. Figs. 4and 5 are detail views of portions of the invention. Fig. 6 is a sideelevation, partly in section, of the loom-shuttle; and Fig. 7 is anenlarged top view of the shuttle.

Similar letters of reference indicate corresponding parts.

The object of my invention is to provide a simple and effectiveweft-stopping device for fancy looms using two or more colors of thread;and it consists in a novel arrangement of fingers, between which thefilling passes as it runs out of the shuttle, one series of which, onthe breaking of the filling-threads, moves so as to actuate a stoppingdevice, as hereinafter more fully described.

The improvement is designed for that class of looms that weaves fabricsfrom threads of several colors, which are introduced into the warp insuccession; and it is intended for stopping the loom or thepattern-forming mechanism of the same.

Referring to the drawing, A is the shuttlebox, having the shuttle-boxswells a, hinged at b, and cut away at c to receive the auxiliarybox-swell d, which is hinged at e to the said main box-swell a. A loop,f, is attached to the swell a, to limit the motion of the auxiliaryswell d.

g is a lever, secured to a shaft, h, that is journaled in supports 'z',projecting from the side of the shuttle-box. To the shaft h an arm, 7',is attached, which, by its motion, governs the stopping mechanism of theloom. The lever 9 is caused, by the spring la on the shaft h, to pressagainst the shuttle-box at a point opposite the end of the auxiliarybox-swell.

The shuttle B is provided with an ordinary bobbin and with theplate-spring Z, which is placed in a rabbet, m, formed in the side ofthe shuttle. The ends of the said spring are received by recesses formedin the metallic caps secured to the ends of the shuttle.

A lug, 11., projects from the inner surface of the spring I, and arecess, 0, is formed in the shuttle to receive it. p is a slide placedin the bottom of the rabbet m, and capable of being moved over therecess 0.

(J is a casing, placed in the eye end of the shuttle, to which isattached a series of four 8- shaped wires, 1', which extend over the shuttle-eye and backward toward the bobbin, as shown in Fig. 3. Thedistance between these wires is a little more than their diameter.

8 s s are arc-shaped wires, attached to a rocking shaft, t, journaled inthe casing O. The said wires are capable of moving between the wires 1'.A cam, u, is secured to the shaft t, near the side of the shuttlein-which the eye is placed; and o is a lever, pivoted to the side of thecasing O, and having three arms, a b c. The arm a extends forward andrests upon the cam u, and is pressed down by a spring, d, attached tothe casing O. The arm b extends downward and passes through an eye, c,that projects inward through the shuttlecasing from the end of the slideThe arm 0' extends upward to the side of the shuttle, where it may bemoved by the finger. I

The operation is as follows: The thread from the bobbin is placedbetween the wires 8 and r bythrowing the arm a oi'the lever '0 up, so asto relieve the cam u, when the arc-shaped wires-s drop below the wires1', and also below the eye of the shuttle. drawn through the loop formedbetween the wires and through the shuttle'eye by means of a hook, andthe lever 41 is released, when the arm a, acting on the cam 11., throwsthe wires or fingers s upward, clamping the thread lightly. The threadprevents the fingers s, and consequently the cam u, from turning furthertoward the point of the shuttle; and the lever v, being thus sustained,holds the slide 12 in its normal position, so that the lug n of thespring I is free to enter the recess 0 as the said spring is pressed bythe auxiliary box-swell d in the shuttle-box; but when the thread breaksor becomes exhausted from the bobbin, and is drawn from between thewires 1 and s, the pressure of the arm a 'of the lever o throws the cama over, permitting the The thread is now said lever to turn on itspivot, being actuated by spring, (1 and by means of its arm b to movethe slide p over the recess 0. so that the spring I, being now rigid andunyielding, throws the auxiliary box-swell d out, so that it strikes thelever y, when the shuttle enters the shuttle-box. The movement of thelever g, by moving the arm j, efl'ects the stopping of the harness anddrop-box motion of the loom, and also the unshipping of the belt.

When the yarn oflers extraordinary resistance to unwinding or becomesentangled, so that it breaks, the movable wires 8 are first drawndownward, when the yarn slips from between the wires. The wires 8, beingliberated, allow the cam u to move, so as to permit the lever 41 to turnon its pivotand move the slide 19 over the recess 0, as beforedescribed.

The arrangement of the wires 1' s, besides controlling the action of theloom in the manner shown, offers a continual slight tension on the yarn,which insures a smooth fabric and a uniform selvage by preventing anundue amount of yarn from passing out of the eye of the shuttle.

By bending the wires 8 this tension may be varied to suit difl'erentkinds of yarn.

My invention is designed to be used in connection with, or in additionto, the ordinary swell-stop mechanism.

Having thus described my invention, Iclai n1 as new and desire to secureby Letters Patent- 1. The combination of the fixed wires 1", the wires8, shaft t, cam a, lever '0, spring 01, and slide 12 with theshuttle-body B, substantially as herein shown and described.

2. The combination of the spring I, having the lug n, the slide 1), andmechanism for operatin g the same, with the shuttle-body B, having therabbet m and recess 0, substantially as herein shown and described.

3. The combination of the fixed wires 1, movable wires s, cam a, lever'0, spring (1', slide 1), and shuttle-body B, having the rabbet m andrecess 0, with the spring I, substantially as shown and described.

4. The combination of the auxiliary boxswell d and main box-swell a withthe shuttle A, stop-rod h, swellrfinger g, and dagger j, as and for thepurpose set forth.

5. The com bination of the shuttle B, having the spring I, provided withlug n, recess 0, and

slide 12, and mechanism for operating the same, with the auxiliarybinder d, substantially as J. E. ERICK, P. P. KUNZ.

